Upgrade ZF 7363 to ZF R510 on new ZD1200

I have swapped out our ZD1100 for a new ZD1200 successfully. I used the backup from the ZD1100 V9.8.3 to configure the 1200. Now I can't get it to recognize the 510 APs as I swap the out. Any ideas? I haven't upgraded ZD yet as I don't want to lose my current AP connectivity until I swap them out.